Jozef Maria Laurens Theo "Jo" Cals (July 18, 1914-December 30, 1971) was a Dutch politician, prime minister of the Netherlands from 1965 until 1966, as a member of the Catholic KVP[?] party.
Cals was born in Roermond, and died in The Hague.
The Twin paradox is a thought experiment in special relativity (SR): of two twin brothers, one undertakes a long space journey while the oth ...
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